Thanks Canewrap! I did test in air in home reading Tejon manual.. I am really like to get faster detector for small items which I can not get quickly with my explorer, I even dont need and dont believe air test what I saw in youtube,they crank maxx sensitivity and sow miracles with all detectors--i dont know why people do this?? I did test Cibola and Tejon and they look very very similar! Yes Tejon deeper< but sound quality is like explosion and after clear LOUD signal response start disappear, it get more and more silent, so this is in my point -yes its possible to use this fading sound quality it in very special places, but from loud its drop to silent?? and tejon start to give silent signal part when Cibola ends give any signal?? some sort wrong design, Tejon deeper yes, but to use this additional deph its not easy. I mentioned XP goldmaxx, because its similar to tejon,but have more pluses, first widescan or double D coil, second most important you can hear iron and make it louder or silent, this is I think is real improvement! another thing is 3 different sounds for iron foil and other stuff. bud big minus XP its to much expensive. I bought Tejon because it was good price, but its not very promising that it will be better more then Cibola and the same One signal!. sorry for my disappointment but for manufacture to make this improvements should be very easy. Thank you for answers Stasys plus Tejon very sensitive to rechargeble batteries.